Apparatus for emulsifying bitumen and the like



' 1966 FUMIAKI FUKUSHIMA 3,236,503

APPARATUS FOR EMULSIFING BITUMEN AND THE LIKE Filed Oct. 16, 1963 2Sheets-Sheet l a v INVENTOR.

1966 FUMIAKI FUKUSHIMA 3,236,503

APPARATUS FOR EMULSIFING BITUMEN AND THE LIKE Filed Oct. 16, 1963 2Sheets-Sheet 2 United States Patent 3,236,503 APPARATUS FOR EMULSIFYINGBITUMEN AND THE LIKE Fumiaki Fukushima, Tokyo, Japan, assignor to EiichiIkeda, Nichireki Kagaku Kogyo Company, Limited,

Tokyo, Japan Filed Oct. 16, 1963, Ser. No. 316,757 1 Claim. (Cl. 259-8)This invention relates to an apparatus for emulsifying such substances,either alone or with other substances, as bitumen-like asphalt, tar, andpitch, flux, plastics, mineral oil, fats and fatty oils, natural andsynthetic resins, rubber, rubber-like substances, fillers, pigment,dyestuffs, and the like.

One object of the present invention is to provide an emulsifyingapparatus which is capable of emulsifying the substances to beemulsified completely, and in a short time.

Another object of the present invention to provide an emulsifyingapparatus capable of emulsifying, easily and completely, thosesubstances which have been insufficiently emulsified by any conventionalemulsifying apparatus fitted with mechanical mixing or high frequencyoscillating devices known in the art.

This invention, more particularly, has reference to an emulsifyingapparatus capable of stirring and mixing su stances to be emulsifiedwith emulsifying liquid within a magnetic field induced by the flux ofmagnetic force, particularly such substances as bitumen-like asphalt,tar, pitch, flux, plastics, mineral oil, fats and fatty oils, naturaland synthetic resins, rubber, rubber-like substances, fillers, pigment,dyestuffs, and the like.

This invention is directed to an emulsifying apparatus wherein asuitable magnetic flux producing device, capable of projecting its fluxinto an emulsifying tank, is suitably positioned and installed aroundsaid tank, said tank being made of those materials which do not disturbsaid flux, and a stirring and mixing device suited for agitatingsubstances to be emulsified and the emulsifying liquid across saidmagnetic flux.

in conventional emulsifying apparatuses, it is known to employ a tankprovided with a stirring and mixing device, an emulsifier of colloidmilltype wherein substances to be emulsified and emulsifying liquid aremechanically exposed to high-speed agitating emulsification, and stillanother type of apparatus for mixing and emulsifying substances andemulsion by high frequency oscillation using ultra-short waves and thelike.

However, all these features in principle have the single object toincrease stirring and mixing efiiciency mechanically.

The accompanying drawings illustrate the embodiments of the presentinvention, in which;

FIG. 1 is a perspective view of the apparatus,

FIG. 2 is a front view in longitudinal section of the same.

An emulsifying apparatus of the present invention is explained withreference to FIGS. 1 and 2.

Numeral 1 indicates a cylindrical emulsifying tank, which is made ofsuch materials as synthetic resin, synthetic resin processed substance,black lead treated with synthetic resin, and hard porcelain, pervious tomagnetic flux.

3,236,503 Patented Feb. 22, 1966 At the bottom of said vessel there isprovided an outlet including an exhaust pipe 3, provided with a cock 4,for removing a desired amount of substance from the tank, and a syphonoutlet 2 for keeping a constant amount of substance in the tank, saidsubstance entering through the inlet 5.

Around the outside wall of said tank 1 there is secured a solenoid 6,made of copper wire, copper pipe, and the like, with an insulating layertherebetween, so that said magnetic flux, created by the current appliedto said solenoid, may permeate well into said emulsifying tank.

In said tank there is provided a stirring mixer 8, which has a suitableshape and a rotary shaft 7 electrically insulated from outside, whichare arranged to be properly rotated by the operation of a pulley 9, abelt 10, and an electromotor 11, all positioned outside said tank.

When said stirring mixer 8 is made, partially or wholly, fro-mconductive material such as metal or metallic oxide electricallyinsulated it proves to be a better inducer of said flux to the centralportion of said emulsifying tank.

Stirring and mixing operation becomes more elfective when saidemulsifying tank 1 is provided with several projections in its interior,or substantially as is shown in FIG. 2, and is also provided with afree-control space between said stirring mixer and its inner circuit,through which said mixed contents, after entering in the tank and beingstirred and mixed Well, can smoothly flow out, While the currents formedby the mixer are intersected by the magnetic flux 12 which passesthrough said emulsifying tank.

The apparatus functions as follows:

(1) The stirring mixer 8 is rotated by an electromotor 11.

(2) Magnetic fiux 12 is generated in an emulsifying tank 1 by supplyingsuit-able current, such as alternating current, to one or more solenoids6. When the alternating current is used for the creation of said flux,proper selections of both frequency and wavelength for eachemulsifica'tion should be considered in accordance with the propertiesof the substance to be emulsified and its emulsifying liquid. Also whenthe intermediate or high frequency current is used, cooling should beprovided for said solenoid by passing water or its equivalent thereintothrough its pipe.

(3)First, a cock 4 of an exhaust pipe 3 which is disposed at the bottomof said emulsifying tank is closed. Then from an inlet conduit 5 forsubstances, emulsifying liquid of required quantity is continuouslyintroduced into said tank at the same time with substances to beemulsified. Actuated by said mixer 8 to cross said magnetic flux, bothare mixed and well emulsified, reaching a certain quantity of mixturethen through a syphonic outlet conduit 2 fixed at the bottom of saidtank, said mixture is continuously discharged. Immediately after theoperation, said cock 4 of the exhaust pipe 3 is opened to dischargeemulsified mixtures which remain in said emulsifying tank.

An emulsifying apparatus constructed as is above detailed, is veryuseful, especially when in continuous operation.

What is claimed is:

An apparatus for emulsifying bitumen and the like, comprising acylindrical tank of material pervi'ous to a magnetic flux, said tankhaving a top and bottom, an outlet in said bottom, said outlet includinga syphon and an exhaust pipe, valve means in said exhaust pipe fordraining said tank, said Syphon maintaining a constant amount ofsubstance in said tank, an inlet conduit in said top, magnetic meansdisposed peripherally of said cylindnica'l tamks wall exteriorlylllhC'I'flOf for creating a magnetic flux in said tank, a rotatableshaft extending axially through said bottom into said tank, a stirringmixer mounted on said shaft and means for rotating said shaift, saidmixer forming currents crossing the path of the magnetic flux.

References Cited by the Examiner UNITED STATES PATENTS Stainbrook.

Clamer.

De Man-e 1326 Osterheld 259108 Eden 1327 X 10 CHARLES A. WILLMUTH,"Primary Examiner.

